Device For Cutting Through The Adhesive Bead Of Panes Fixed By Bonding

ABSTRACT

The invention provides a device and a method for cutting through an adhesive bead of a pane using a motor-driven winding-up device. The winding-up device includes a coil adapted to wind up a cutting wire for cutting through the adhesive bead and can be coupled, via a coupling that can be disengaged, to a suction disk that can be located on the vehicle inside in such a way that, preferably, the winding-up device is rotatably received on the suction disk. When the winding-up device is driven, it will therefore align itself automatically to the cutting wire.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority of German patent application No.10 2009 010 463.1 filed on Feb. 13, 2009, German patent application No.10 2008 060 812.2 filed on Dec. 1, 2008 and German patent applicationNo. 10 2008 060 811.4 filed on Dec. 1, 2008, the content of which isincorporated herein by reference.

BACKGROUND OF THE INVENTION

The present invention relates to a device for cutting through anadhesive bead of a pane, having a motor-driven winding-up device thatcomprises a coil adapted to wind up a cutting means for cutting throughthe adhesive bead.

The invention further relates to a method for cutting through anadhesive bead of a pane wherein a cutting means is placed around theadhesive bead from the outside, a first end of the cutting means isfixed, a second end of the cutting means is passed through the adhesivebead and is fastened on the winding-up device, and the winding-up deviceis driven to wind up the cutting means for cutting through the adhesivebead.

A device and a method of the kind specified above are known from DE 102006 013 417 A1.

The device and the method are suited for cutting out panes installed,for example, in motor vehicles, buildings, railway trains, cablewaycabins, aircraft and ships. Although the present application willpredominantly refer to applications in connection with vehicles, thoseapplications are described by way of example only and are not meant torestrict the application.

Windshields of modern vehicles are firmly connected with acircumferential body flange by an adhesive bead consisting of apolyurethane adhesive or another suitable adhesive. The adhesive beadconsists of a material so strong that the adhesive, together with thewindshield, increase the mechanical stability of the vehicle. It isunderstood that due to the high strength and toughness of the adhesivecutting through the adhesive is a relatively difficult task.

However, as windshields have to be exchanged relatively frequently, dueto rock-fall or other damage, there must be available for every vehicletype a suitable device and/or a suitable method by which the windshieldcan be removed.

According to the known method, the winding-up device is supported on theframe or body flange by a support while the winding-up device is drivento progressively cut through the adhesive bead. During that process, thewinding-up device and the support are moved along the frame or theadhesive bead in accordance with the progress of the cutting operation.

In this regard the complicated way in which the winding-up device has tobe guided along the body flange has been found to be a disadvantage. Insome cases, access to the body flange is obstructed by projecting parts.In addition, rather high forces have to be applied when guiding thewinding-up device along the body flange. And there is further a riskthat the body flange may be damaged by the winding-up device and thesupport being guided along the flange.

Further, DE 297 11 291 U1 describes a pane-separating device adapted tocut through an adhesive bead of a pane fixed by bonding, having a pairof suction disks that can be attached to the pane to be separated,wherein a winding-up device is connected with each of the suction disksvia a linkage and wherein each linkage allows a movement to occurbetween the suction disks and the winding-up device about two axes thatextend substantially in parallel to the pane surface and vertically onerelative to the other.

Although in principle it is possible to cut out a pane using such adevice, the way of fixing the pane-separating device by a pair ofsuction disks is very complex. In addition, the position of the devicefrequently has to be changed as the geometric conditions may be verydisadvantageous.

SUMMARY OF THE INVENTION

In view of this, it is a first object of the invention to disclose adevice for cutting through the adhesive bead of a pane that makes theprocess of cutting through the adhesive bead of the pane a simple andeasy task.

It is a second object of the invention to disclose a device for cuttingthrough the adhesive bead of a pane that makes the process of cuttingfor the worker easy and little tiring.

It is a third object of the invention to disclose a device for cuttingthrough the adhesive bead of a pane that avoids damage to the body towhich the pane is attached.

Further, the invention is to disclose a method for cutting through theadhesive bead of a pane fixed by bonding which is as simple as possibleand little tiring for the worker.

These and other objects of the invention are achieved by a device of thebefore-mentioned kind in that the winding-up device is detachably heldon a suction disk, that can be located on the vehicle inside, via acoupling.

The object of the invention is thus perfectly achieved.

This is so because the device according to the invention provides anespecially simple and energy-saving way of cutting through the adhesivebead because, being detachably mounted on the suction disk, it can befixed on the suction disk in a simple way.

According to a preferred further development of the invention, thewinding-up device is mounted to rotate on the suction disk.

This provides an especially comfortable way of cutting out a pane as thewinding-up device will in this case automatically align itself to thecutting means during operation of the winding-up device so that theadhesive bead can be cut through easily.

The fact that the winding-up device is to be fixed on the pane via asingle suction disk makes working with the device especially easy andenergy-saving because there is no need to guide the winding-up device byhand; instead the device is fixed directly on the vehicle inside.

In the context of the present application the term “cutting means” is tobe understood to mean every type of wire or cord basically suited forcutting through an adhesive bead of a vehicle pane. This means that acutting means must have sufficient tear strength and flexibility, andmust under certain circumstances be provided with a suitable coating orsuitable surface features in the form of a toothing or the like tosupport the cutting operation. However, it is understood that the term“cutting means” also includes a suitable cord made from a plasticmaterial or any other material.

According to another embodiment of the invention, the coupling comprisesa coupling element in the form of a flange projecting from a pinradially to the outside, and a matching coupling counter-element in theform of a keyhole in which the coupling element can be received and canbe displaced to an end position in which the coupling element isrotatably held on the counter-element of the coupling.

This makes it possible to fix the winding-up device on the suction diskfrom the vehicle inside in a rapid and simple way, using the detachablecoupling. The end position may also be secured by a locking mechanism soas to prevent easy slipping-off of the coupling element.

According to another embodiment of the invention, the coupling isrotatably held on the suction disk or on a housing of the winding-updevice.

In that case, rotation between the winding-up device and the suctiondisk is not to be ensured by the coupling as such, but is renderedpossible by separate means. This results in a wide range of possibleconfigurations of the coupling.

According to another embodiment of the invention, there is provided amechanism that secures the coupling from getting detached duringrotation.

While usually the coupling is secured from slipping off during rotationrelative to the suction disk over a limited angle of 180°, for example,it is possible in this way to allow full rotation of the winding-updevice over an angle of more than 180° or even up to 360°. This can berendered possible by a locking means. Or the coupling may be adjustedfor this purpose by giving the respective coupling elements a matedconfiguration.

According to another embodiment of the invention, a means for fixing oneend of the cutting means is provided on the suction disk.

While the cutting means disclosed in connection with the method knownfrom DE 10 2006 013 417 A1 is to be fixed on the wiper shaft, forexample, from the outside, it is now possible to fix it directly on thesuction disk. So, it is no longer necessary, for example, to fix thecutting means in a location of the body that is difficult to access.Instead, the suction disk anyway present may be used also for fixing thecutting means. It is, however, understood that a separate suction diskmay be used for that purpose as well.

According to another embodiment of the invention, a clamping means isprovided on the suction disk for fixing the cutting means.

This allows the cutting means to be fixed on the suction disk easily andquickly.

To this end, there may be provided on the suction disk a block having atleast one opening, preferably a plurality of openings, for receiving oneend of the cutting means and for fixing it by a clamping element,preferably by screwing.

For clamping the cutting means a screw may be used which when beingscrewed down fixes the end of the cutting means by its end face.

That way of fixing may also be combined with a configuration of thecounter-element of the coupling as a pin with a flange that projects inradially outward direction. The flange or pin may in this case consistof a correspondingly shaped screw.

An alternative embodiment of the invention is provided with aquick-acting clamping mechanism, especially a Curry clamp, for fixingone end of the cutting element.

This likewise provides an easy and quick way of fixing the cuttingmeans.

According to another embodiment of the invention, one guide roll,preferably at least two guide rolls, are provided for guiding thecutting means to the coil.

This feature provides the advantage that the cutting means is at anytime optimally aligned relative to the cutting area of the cutting meanson the adhesive bead, irrespective of the particular position of thewinding-up device, so as to ensure well-ordered winding up on the coil.

If two guide rolls are provided, these preferably are seated on axeswhich define between them a plane that extends through the coil,substantially in parallel to a coil axis. Preferably, the cutting meansis wound up on the coil substantially tangentially.

This guarantees that the cutting means will be wound up properly at anytime.

According to an advantageous embodiment of the invention, two guiderolls are seated on axes in such a way that their axes define betweenthem a plane that extends through the coil of the winding-up devicesubstantially in parallel to one axis.

This has the effect that the cutting means will be supplied to the coilsubstantially vertically. Winding-up the cutting means is therebyfacilitated.

Further, each guide roll preferably is provided with guide surfaces forguiding the cutting means to an opening of the coil housing, in adirection substantially tangential to the coil.

It is ensured in that way that the cutting means will be safely suppliedto the coil from substantially any point on the curve described by thecircumferential adhesive bead, which allows the device to be operated ina multidirectional way and the cutting angle to be positively influencedby changing the position of the device.

According to a further embodiment of the invention, a support isexchangeably fitted on the winding-up device.

In that case, the winding-up device can be detached from the suctiondisk for areas of the adhesive bead that would be impossible ordifficult to cut out with the winding-up device fixed on the suctiondisk, due to unfavorable geometric conditions. Now, the winding-updevice can be guided on the pane along its associated body flange, withthe aid of the support, to allow the adhesive bead to be cut through inthose areas.

Also, that embodiment may be used in cases where work is performed usingthe support and where the position of the winding-up device must bechanged after an interruption of work. The coupling can then be used forhanging up the device temporarily until work is resumed at a differentpoint.

It is understood that the mechanism for guiding the winding-up devicealong the vehicle body using the support may be combined in some caseswith a drive for the winding-up device mounted rotatably on the suctiondisk.

The invention is further achieved by a method for cutting through theadhesive bead of a pane comprising the steps of:

-   -   Placing a cutting means around the adhesive bead from the        outside;    -   fixing a first end of the cutting means;    -   fixing a motor-driven winding-up device rotatably on a suction        disk on the vehicle inside using a coupling;    -   guiding a second end of the cutting means through the adhesive        bead and fixing it on the winding-up device; and    -   driving the winding-up device for cutting through the adhesive        bead, during which process the winding-up device aligns itself        to the cutting means.

This allows the adhesive bead to be cut through in a simple andenergy-saving way. Due to the fact that the winding-up device will alignitself directly to the cutting means, relatively good cutting resultsare achieved, due to an advantageous alignment of the winding-up device.

According to an advantageous further development of that method, thefirst end of the cutting means is guided through the adhesive bead andis fixed on the pane.

Fixing can be effected in this case using that suction disk which alsoserves to take up the winding-up device.

This leads to an especially simple way of fixing the end of the cuttingmeans so that the cutting means need no longer be fixed on the wipershaft, for example, which may be an awkward operation.

The object of the invention is further achieved by a method for cuttingthrough an adhesive bead of a pane comprising the steps of:

-   -   Placing a cutting means around the adhesive bead from the        outside;    -   fixing a first suction disk on the pane from the inside;    -   guiding a first end of the cutting means through the adhesive        bead and fixing it on the suction disk;    -   guiding a second end of the cutting means through the adhesive        bead and fixing it on a motor-driven winding-up device;    -   driving the winding-up device to wind up the cutting means for        cutting through the adhesive bead.

This method likewise provides an advantageous way of cutting though theadhesive bead on a pane. Regardless of whether the winding-up device isrotatably fixed on the pane using a suction disk, or is guided along theinterior of the vehicle with the aid of a support, fixing the end of thecutting means is facilitated as the end of the cutting means is fixeddirectly on a suction disk. So, the cutting means no longer has to befixed on another stationary body part, which might be a rather awkwardoperation.

It is understood that the features of the invention mentioned above andthose yet to be explained below can be used not only in the respectivecombination indicated, but also in other combinations or in isolation,without leaving the scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

Further features and advantages of the invention will become apparentfrom the description that follows of certain preferred embodiments, withreference to the drawing. In the drawing

FIG. 1 shows a pane with a motor-driven winding-up device for winding upa cutting means, which is rotatably held on a suction disk on the pane;

FIG. 2 shows a perspective view of the winding-up device according toFIG. 1, in an enlarged scale;

FIG. 3 shows a first embodiment of a suction disk with a couplingelement intended to receive the winding-up device;

FIG. 4 shows a second embodiment of a suction disk with a couplingelement intended to allow rotation of and to receive the winding-updevice, and a clamping mechanism, arranged at a spacing, for taking upone end of the cutting means;

FIG. 5 shows another embodiment of a suction disk where a couplingelement intended to receive the winding-up device is combined with aclamping mechanism intended to take up one end of the cutting means;

FIG. 6 shows a modification of the embodiment according to FIG. 5;

FIG. 7 shows an enlarged view of the clamping mechanism according toFIG. 6;

FIG. 8 shows an embodiment of the invention slightly modified relativeto FIG. 1, where an end of the cutting means that is to be fixed on thevehicle is now held on a suction disk fixed on the pane, by a clampingmechanism; and

FIG. 9 shows a modification of the method illustrated in FIGS. 1 to 8,where the winding-up device for cutting through the adhesive bead isguided along the body flange using a support.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

In FIG. 1, the device according to the invention is indicated generallybe reference numeral 10.

The device 10 comprises a winding-up device adapted to wind up a cuttingmeans 18 that serves to cut through an adhesive bead 34 of a pane 12.

The pane 12 may, for example, be a windshield of a motor vehicle whichis bonded onto a body flange 14 using an adhesive bead 34 that consistsof a very tough plastic material, such as a polyurethane adhesive. Theadhesive bead 34 is extremely strong thereby contributing to theinherent stability of the vehicle.

When an adhesive bead 34 of that kind is to be cut through using acutting means in the form of a wire or the like, then obviouslyconsiderable forces are required for that operation.

While the prior art normally used hand-held winding-up devices for thatoperation, the invention now proposes a motor-driven winding-up device24 that can be rotatably fixed on the pane 12 with the aid of a suitablecoupling 15 on a suction disk 19.

For cutting through the adhesive bead, the cutting means 18 is at firstplaced around the pane 12 from the outside, and a first end of thecutting means is fixed on a stationary part of the vehicle, for exampleon the wiper shaft 13. Then a second end is guided through the adhesivebead and is fixed on the winding-up device 24. The winding-up device 24is rotatably fixed on the suction disk 19 via a suitable coupling 15, ina manner that will be described in more detail hereafter. This iseffected using a coupling element 16 and a coupling counter-element 17that provide a detachable connection and at the same time allow thewinding-up device 24 to rotate relative to the suction disk 19.

When the winding-up device 24 is operated, it rotates from its originalposition, illustrated in full lines in FIG. 1, to the positionillustrated by broken lines, indicated by 24′. Now, the adhesive bead 34can be progressively cut out by winding up the cutting means 18, duringwhich process the winding-up device 24 will always align itselfautomatically to the cutting means 18.

The structure of the winding-up device 24 will now be described in moredetail with reference to FIG. 2.

The winding-up device 24 comprises a housing 20 with a handle 22provided on its one end. The housing 20 tapers like a wedge from thehandle 22 toward the opposite end on which a support 32 is mounted in adetachable way. A coil 28, adapted to rotate about a coil axis 72,serves to wind up the cutting means 18. The coil 28 is protected fromcontact by an outer enclosure provided with a single opening 70 forcarrying the cutting means 18 to the outside. In order to guaranteeeffective tangential winding-up of the cutting means 18 on the coil, twoguide rolls 50, 52 are received one beside the other on stationary axes58, 60 that allows the cutting means 18 to pass to the outside throughthe opening 70. In order to prevent the cutting means 18 from jumpingout of the gap between the two guide rolls 50, 52, the two coil axes 58,60 are connected one with the other by a cover element 64.

The two axes 58, 60 on which the guide rolls 50, 52 are seated definebetween them a plane parallel to the coil axis 72. Such an arrangementof the guide rolls 50, 52 relative to the coil 28 guarantees largelytangential winding-up of the cutting means 18 on the coil 28, regardlessof the arrangement of the coil 28 as such. As is illustrated in FIG. 2,the coil 28 may have its coil axis 72 arranged substantially in parallelto the cover element 64 and parallel to the handle 22 provided on theoutside.

However, an arrangement of the coil 28 turned by 90°, for example, wouldlikewise be imaginable.

The winding-up device 24 can be motor-driven by a drive 26. The drive 26comprises an electric motor 27 which drives a gearing 29 that is finallycoupled with the coil 28.

In the illustrated case, an accumulator indicated by 30 serves ascurrent supply to the electric motor 27. It is, however, understood thatinstead a mains-operated device may be used as well and that other typesof drives, for example a compressed-air motor, could likewise beemployed.

The upper surface of the housing 20 is further provided with a couplingelement 16 in the form of a keyhole into which a corresponding couplingcounter-element (FIGS. 3 to 6) can be introduced and in which it can bedisplaced to locate it in an end position.

The associated coupling counter-element, generally indicated by 17, isillustrated in FIG. 3. The coupling counter-element 17 comprises a pin35 with a flange 36 projecting from its end in radially outwarddirection. The flange 36 can be introduced into the associated wide areaof the keyhole coupling element 16 and can then be displaced along thenarrower area of the coupling element until an end position is reached.Locking in that end position can be ensured by giving the couplingelement 16 a special configuration, for example by providing two smallcams or a suitable spring element. In that end position, the couplingcounter-element 17 is rotatably held on the coupling element 16. Aparticular configuration of the keyhole shape allows rotation of theelement by at least 180°. If rotation by more than 180° is desired, thiscan be achieved by a different form of the coupling element 16 or by anadditional securing mechanism (such as the before-mentioned lockingmeans).

Hereafter, different embodiments of the suction disk 19 will bedescribed in more detail with reference to FIGS. 3 to 7.

In the illustration of FIGS. 3 and 4, a clamping lever that serves toattach the suction disk 19 by suction has been omitted for the sake ofsimplicity.

FIG. 4 shows a modification of the suction disk 19 according to FIG. 3,indicated generally by reference numeral 19 a. In that case, means forclamping and fixing one end of the coupling element 18 are provided inaddition to the coupling counter-element 17 a, the design of whichcorresponds in full to the coupling counter-element 17 of FIG. 3. Forthis purpose a block 38, comprising a plurality of radial bores 40, isfixed on the upper surface of the suction disk 19 a. The radial bores 40allow one end of the cutting means 18 to be introduced. For locating thecutting means, there is provided a clamping screw 39 which is rotatablyreceived in an associated threaded bore of the block 38 and which iscapable of fixing by its end face an end that has been introduced intothe bore 40.

FIG. 5 shows another modification of the suction disk 19 a, indicatedgenerally by reference numeral 19 b. In that case, the counter-elementof the coupling on the one hand and a clamping element intended to fixone end of the cutting means 18 on the other hand have been combined toa single unit. To this end, a block 38 received on the upper surface ofthe suction disk 18 b is again provided, on its lower end, with aplurality of radial bores 40 designed to receive one end of the cuttingmeans 18. A screw 36 b that can be screwed into the block 38 has itshead configured as a flange 36 or 36 a, respectively, so as to serve asa counter-element to the coupling element 16. As to its form and size,the shaft of the screw 36 b, indicated by 35 b in FIG. 5, corresponds tothe pin 35 of FIG. 3. The lower end of the screw 36 b is provided with asuitable thread that can be screwed into a matching threaded blind holein the block 38 for fixing by its end face one end of the cutting means18 that has been introduced into the hole, and for simultaneouslyensuring its location on the block 38. In combination with the block 38,this arrangement constitutes a counter-element 17 of the coupling.

In addition, a clamping lever 42, serving to operate the suction disk 19b, is illustrated in FIG. 5.

A further modification of the suction disk is illustrated in FIGS. 6 and7 and is indicated generally by 19 c. In that case, the functions of thecounter-element 17 c of the coupling on the one hand and of a clampingmeans 44, intended for fixing one end of the coupling means 18, on theother hand are decoupled one from the other.

As is shown in FIG. 7, the clamping means 44 is designed in this case asa quick-acting clamping mechanism, also known as “Curry clamp”. Thequick-acting clamping mechanism 44 comprises two clamps 45, 46, whichcan be moved one relative to the other and can be pivoted aboutassociated axes 47, 48 and which are spring-loaded in a suitable way.When the ends of the two clamps 45, 46 are moved in a directionindicated by the arrows the cutting means 18 can be pulled out of thespace between the two clamps 45, 46. In contrast, in the releasedcondition, an end of the cutting means 18 introduced into the spacebetween the two clamps 45, 46 is permanently held between the two clamps45, 46. According to FIG. 6, a substantially U-shaped bracket 43extending above the quick-acting clamping mechanism 44 forms on itsupside a base suited to receive a coupling counter-element 17 c of thekind known from FIG. 3. Accordingly, one end of the cutting means 18 canbe clamped and located on the quick-acting clamping mechanism 44, whoseends project outwardly from the opening formed by the bracket 43, whilethe counter-element 17 c of the coupling, disposed on the upside of thebracket 43, serves to realize the connection with the coupling element16.

FIG. 8 illustrates an application of the winding-up device 24 forcutting through the adhesive bead 34 where, contrary to the illustrationof FIG. 1, one end of the cutting means 18 is fixed directly on thesuction disk 19 a by a suitable clamping mechanism on the block 38. Inorder to allow the end of the cutting means 18 to be fixed on thesuction disk 19 a, the end is pierced through the adhesive bead 34 andis then fixed by the clamping mechanism directly on the suction disk 19a. FIG. 8 shows the operation of cutting through the adhesive bead 34,where the winding-up device 24, starting from an inactive position 24 atthe beginning of the winding-up operation, aligns itself directly to thecutting means 18, turning into the position 24″ indicated by brokenlines. In the illustration of FIG. 8, part of the adhesive bead 34 hasalready been cut through.

Such an application of the winding-up device 24, with rotatableconnection to the coupling 15, will be useful in particular when thepane 12 to be cut out does not present any particular obstacles to thecutting means 18. Such a pane could, for example, be a rear vehiclewindow or a pane of a rail vehicle where no particular obstacles arefound.

However, when the geometric conditions of a pane are such that thebefore-mentioned rotatable connection with the suction disk 19 on thepane 12 using the coupling 15 can be realized either not at all or onlyin part there is also the possibility to guide the winding-up deviceaccording to FIG. 9 along the body flange or the frame 14 or along theadhesive bead 34, using a support 32 provided on the end of thewinding-up device opposite the handle 22.

The device is in this case supported on the surface of the body flange14 by the end face 33 of the support 32, which permits the device to beguided in a direction parallel to the coil axis 72. The body flange 14is progressively cut through in this case, starting out from theposition of the cutting means 18 illustrated in full lines, which factis illustrated in the drawing by the position of the cutting means 18indicated by broken lines.

1. A device for cutting through an adhesive bead of a pane, comprising:a motor-driven winding-up device having a coil for winding up a cutterfor cutting through the adhesive bead; a suction disk configured forattaching to an inside of the pane; a coupling element attached to saidwinding-up device; a coupling counter-element attached to said suctiondisk and being matched to said coupling element, configured for securingsaid coupling counter-element detachably and rotatably on said couplingelement; and at least one guide roll arranged for guiding said cutterwhen winding onto said coil; a clamping means attached to said suctiondisk for securing one end of said cutter; and a support configured forguiding said winding-up device along a body to which said pane is fixed.2. A device for cutting through an adhesive bead of a pane, comprising:a motor-driven winding-up device having a coil for winding up a cutterfor cutting through the adhesive bead; a suction disk configured forattaching to an inside of the pane; a coupling comprising a couplingelement and a coupling counter-element matched to each other, one ofwhich being attached to said winding-up device, the other one of whichbeing attached to said suction disk; wherein said coupling is configuredfor securing said coupling counter-element detachably on said couplingelement.
 3. The device of claim 2, wherein said coupling is configuredfor allowing rotation of said coupling element relative to said couplingcounter-element while being in a position secured to each other.
 4. Thedevice of claim 2, wherein said coupling counter-element is configuredin a shape of a flange projecting from a pin radially outwardly; andwherein said coupling element is configured in the shape of a keyhole,thereby allowing to receive said coupling counter-element in a firstposition and to displace said coupling counter-element into an endposition in which said coupling counter-element is rotatably secured onsaid coupling element.
 5. The device of claim 2, further comprising alocking means for securing said coupling counter-element againstdisengagement from said coupling element during rotation.
 6. The deviceof claim 2, further comprising a clamping means attached to said suctiondisk for securing one end of said cutter.
 7. The device of claim 6,further comprising a quick-acting clamping mechanism provided on saidsuction disk for securing said cutter.
 8. The device of claim 2, furthercomprising a block attached to said suction disk and having at least oneopening configured for receiving one end of said cutter and for securingsaid end by clamping.
 9. The device of claim 2, further comprising atleast one guide roll arranged for guiding said cutter when winding ontosaid coil.
 10. The device of claim 1, comprising two guide rollsarranged for guiding said cutter when winding onto said coil, said guiderolls being seated on axes defining a plane therebetween, said planeextending through said coil substantially in parallel to an axis ofrotation of said coil.
 11. The device of claim 1, wherein said coil isheld rotatably within a coil housing having an opening allowing to windsaid cutter onto said coil, and wherein each guide roll comprisesguiding surfaces arranged for guiding said cutter through said openingsubstantially tangentially onto said coil.
 12. The device of claim 2,wherein winding-up device further comprises a support configured forguiding said winding-up device along a body to which said pane is fixed.13. The device of claim 12, wherein said support is secured to saidwinding-up device exchangeably.
 14. The device of claim 1, furthercomprising a block attached to said suction disk and having at least oneopening configured for receiving one end of said cutter and for securingsaid end by clamping.
 15. The device of claim 1, further comprising aquick-acting clamping mechanism provided on said suction disk forsecuring said cutter.
 16. The device of claim 1, wherein said support issecured to said winding-up device exchangeably.
 17. The device of claim1, further comprising a locking means for securing said couplingcounter-element against disengagement from said coupling element duringrotation.
 18. The device of claim 1, wherein said couplingcounter-element is configured in a shape of a flange projecting from apin radially outwardly; and wherein said coupling element is configuredin the shape of a keyhole, thereby allowing to receive said couplingcounter-element in a first position and to displace said couplingcounter-element into an end position in which said couplingcounter-element is rotatably secured on said coupling element.
 19. Amethod of cutting through the adhesive bead of a pane comprising thesteps of: placing a cutting means around the adhesive bead from theoutside; fixing a first end of the cutting means; fixing a motor-drivenwinding-up device rotatably on a suction disk on the vehicle inside,using a coupling; guiding a second end of the cutting means through theadhesive bead and fixing it on the winding-up device; and driving thewinding-up device for cutting through the adhesive bead, during whichprocess the winding-up device aligns itself to the cutting means. 20.The method of claim 19, wherein the first end of the cutting means isguided through the adhesive bead and is fixed on the suction disk.